2XPG	Immune System	date	Aug 26, 2010
title	Crystal Structure Of A Mhc Class I-Peptide Complex
authors	R.M.Mcmahon, L.Friis, C.Siebold, M.A.Friese, L.Fugger, E.Y.Jones
compound		source
Molecule: Hla Class I Histocompatibility Antigen, A-3 Alpha Chain: A Fragment: Heavy Chain, Residues 25-298 Synonym: Hla-A3, Mhc Class I Antigen A3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Blr (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet-22b
Molecule: Beta-2-Microglobulin Chain: B Fragment: Beta2-Microglobulin Form Pi 5.3, Residues 22-118 Synonym: Hla-A3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Blr (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet-22b
Molecule: Myelin Proteolipid Protein Chain: C Fragment: Residues 45-53 Synonym: Plp Peptide, Plp, Lipophilin Engineered: Yes		Synthetic: Yes Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606
symmetry	Space Group: P 21 21 21	R_factor 0.190 R_Free 0.247
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.140 65.550 107.210 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	Structure of HLA-A*0301 in complex with a peptide of proteolipid protein: insights into the role of HLA-A alleles in susceptibility to multiple sclerosis., McMahon RM, Friis L, Siebold C, Friese MA, Fugger L, Jones EY, Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):447-54. Epub 2011 Apr 13. PMID:21543847

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (135 Kb) [Save to disk] Biological Unit Coordinates (2xpg.pdb1.gz) 126 Kb CSU: Contacts of Structural Units for 2XPG Structure Factors (241 Kb) Retrieve 2XPG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2XPG from S2C, [Save to disk] Re-refined 2xpg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2XPG in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 2XPG

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2XPG, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2xpg] [2xpg_C] [2xpg_B] [2xpg_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 2XPG: [IGc1 ] by SMART

Other resources with information on 2XPG

Community annotation for 2XPG at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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